is 2 9365891 - 1
has 2819415 decimal digits
takes 2.589 GHz-days to do one PRP test
Last-known PrimeNet details:
Assigned as pminus1 on 2022-11-15, 0.0% done, ETC 2022-12-24
factored, 0 LL tests remaining
ResidueStatus
L-L015A1ED85E1455DCdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27151.044666.1972%20000004771857090104.950010.9979%155.994669.9148%3.7176%
Target2686.364064.7059%6000014000000.05332.4584%6.417365.5736%0.8677%
Difference+3+44.6806+1.4913%+1940000+4770457090+104.8967+8.5395%+149.5773+4.3412%+2.8499%

Known prime factors (1 factor, 125.2 bits, 0.00133706% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
93658914979837544422721752588541241789112527938125.2272658496423043318437396154429829
33 × 167 × 197 × 67807 × 92669 × 906749 × 525283219
2022-12-249067495252832191.514e+1011.81321.422

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2003-04-27T00:00:00ANONYMOUSv4_computers45000596250---0.030--1.240%
2012-08-30T23:37:00James Heinrichi7-9201750003850000---0.150--2.691%
2022-12-24T19:17:40ThaZ-1702000000477185709038125.227105.05.177209.910.998%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-11-14T00:00:00ANONYMOUSv4_computers21255--0.001--
1999-03-15T00:00:00ANONYMOUSv4_computers21264--0.380--
2013-09-05T13:21:00NesowaManual testing264265--0.399--
2015-05-08T13:52:00VictordeHollanderManual testing265266--0.798--
2016-05-17T13:29:05snme2pm1Manual testing266267--1.596--
2017-04-27T02:57:05snme2pm1Manual testing267268--3.191--
2019-09-09T14:00:48mnd9Manual testing268269--6.383--
2020-12-13T17:29:52-Anonymous-Manual testing269270--12.77--
2020-12-13T17:29:52-Anonymous-Manual testing270271--25.53--


ECM factoring results:
Total ECM effort:1.261 GHz-days
Estimated T-Level:0.577
DigitsB1CompleteFacMiss
20110000.11589.102%
25500000.01198.938%


ECM Summary

B1B2factorcurvesGHz-days
50000500000031.261


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2000-09-15T00:00:00ANONYMOUSv4_computers015A1ED85E1455DC2.589
2003-05-11T00:00:00ANONYMOUSv4_computers015A1ED85E1455DC2.589


PRP results:
dateuseridcompidcofactorsres64PRP
2022-12-29T20:38:49rucio
49798375444227217525885412417891125279
FE060F38ED4DBADFno


P-1 factor-bounds graph:
B1 = 2000000, B2 = 4771857090 (P-1 stage 2)
B1 = 2000000 (P-1 stage 1)
B1 = 175000, B2 = 3850000 (P-1 stage 2)
B1 = 175000 (P-1 stage 1)
B1 = 45000, B2 = 596250 (P-1 stage 2)
B1 = 45000 (P-1 stage 1)
103
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105
106
107
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
271
270
269
268
267
266
265
264
255
250
260
270
280
290
2100
2110
2120
2130
Last modified: 2022-12-29T20:38:49+00:00